Piedinature - Pinouts
C64 / VIC20 Control Port

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Reference and Sources:

  • Commodore Manual

9 PIN D-SUB MALE (At the computer)

9 PIN D-SUB FEMALE (At the joystick cable)

9 PIN D-SUB MALE at the computer.
9 PIN D-SUB FEMALE at the joystick cable.

Control Port 1

Pin Name Dir Comment
1 JOYA0 IN UP
2 JOYA1 IN DOWN
3 JOYA2 IN LEFT
4 JOYA3 IN RIGHT
5 POT AY IN/OUT  
6 BUTTON A / LP IN/OUT  
7 +5V OUT 50 mA max
8 GND ------ Ground
9 POT AX IN/OUT  

Control Port 2

Pin Name Dir Comment
1 JOYB0 IN UP
2 JOYB1 IN DOWN
3 JOYB2 IN LEFT
4 JOYB3 IN RIGHT
5 POT BY IN/OUT  
6 BUTTON B IN/OUT  
7 +5V OUT 50 mA max
8 GND ------ Ground
9 POT BX IN/OUT  

Note: Direction is Computer relative Device.
Note: Pot is a linear 470 kOhm (±10 %)

Signals

POT X & POT Y (Analogic X axis & Analogic Y axis)
POT X and POT Y are used on Commodore C64 and C128 systems for analogic controllers and maybe on other systems with analogic controllers.

LP (Light Pen)
LP is used on Commodore C64 and C128 systems (port 1 only) for the Light Pen (and maybe for Light Guns).



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